Thread-board.



W. 9. ALDRICH THREAD BOARD. APPLIGATiON FILED mm: 18, 1907.

Fatented Apr. 5, 1910.

ANDREW B GRAHAM-CD mowumccmwzns. wxmumon. n c.

prirrnie WILLIAM O. ALDRICH, OF l/VHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO THE VTHITIN MACHINE WORKS, OF VII-IITINSVILLE, MASSACHUSETTS, A CORPQRATION OF MASSACHUSETTS.

eerie THREAD-BOARD.

Specification of Letters Patent.

Application filed June 18, 1997.

$53,732. latented Apr. 5, 191%..

Serial No. 379,546.

To all whom it may concern:

Be it known that I, lVILLLrM G. Annnron, a citizen of the United States, residing at lVhitinsville, in the county of lVorcester and State of lrlzssachusetts, have invented certain new and useful Improvements in Tlln-ead-Boards, of which the following is a full, clear, and concise description.

My invention relates to tln'ead-boards of spinning-finmes and more particularly to improvements in the construction and mounting of the finger-heads and threadguides thereon, with the object to increase their strength and durability and likewise to simplify the construction and reduce the cost thereof.

The invention is shown in the accompanying drawings, wherein- Figures 1 and 2 represent in perspective view two forms of my invention; Fig. 3 represents in front elevation a developed form of the invention; Fig. t is a vertical section of Fig. 3 on the line TV, TV, with certain j parts in elevation; and 5 is a. detail, view of the front flange of the finger-head. ratus are confined to a single device, 2'. c. the

Referring first to Fig. 1, the finger-head is hinge mechanism which may be made ade stamped or otherwise formed of a sheet quately heavy for this purpose. That is to angle to the body of the leaf and transversely to its hinge axis, forming rigid ears or stops 8 which engage with the face of the lower leaf, when the finger-head is turned down, and hold it firmly in horizontal position.

In the form shown in Fig. 2 the hinge mechanism is reversed and the lower leaf 9 is provided with the outwardly bent extremities or cars designated 10, which form the stops for holding the finger-head horizontal. In this form of the invention the lower corners of the stop ears are rounded ofl" so as to avoid their catching upon the wiping cloth or coat-sleeve of the operator when dotling the spindles, but in both cases it will be observed that the stop-ears are integral parts of the hinge mechanism and are entirely disposed in vertical or perpendicular planes with respect to the other hinge leaf, which thus adapts them to receive and resist the strains on the latter with great firmness, and it will be further observed that such. strains as are liable to distort the appametal blank with downturned front and side say, the desired strength for the horizontal reinforcing flanges l and 2 as shown, and support of the finger-head, both as to the with an appropriate aperture through the 5 stops and the hinge proper, may be obtained front flange for receiving the shank of the by selecting hinge mechanism of appropriate usual thread-guide or pig-tail not here} weight and thickness without making the shown. The body of the finger-head is also i finger-head, which must be kept as light as perforated at a to receive the usual clainppossible for obvious reasons, out of metal ing bolt for the thread-guide. As thus 5 stock any heavier or thicker than is needed formed, the finger-head presents a smooth for the clamping of the thread-guide.

upper surface which is devoid. of sharp Referring now to Figs. 3-5 the upper edges or corners that might catch upon the hinge-leaf 11 conforms to the interior shape wiping cloth when the apparatus is cleaned of the finger-head body and. carries integral and the corners of the marginal flanges are stop-ears 12 formed by bending out its ends also rounded for the same purpose. The r as above described. The leaf 11 is also finger-head is supported upon the back-rail double-slotted and the portion or tongue 13 5 by means of special hinge mechanism con- 1 between slots is offset so as to form a stit-uting my invention, which mechanism is clamping plate for holding the eye of the formed independently of the finger-head thread-guide or pig-tail 14, which latter is and the back-rail and is particularly adaptl confined between the said clamping plate ed for sustaining the shocks and strains to and the body of the finger-head. The which these devices are liable to be subjected. clamping plate 13 and finger-head are per- In the form shown in Fig. l the hinge mechforated, in registry, for receiving the clampanism comprises two hinge leaves of which 5 ing bolt 15 of usual construction, and the the lower leaf 6 is screwed to the front face parts are assembled so that the plate exerts of the back-rail 5, while the upper leaf '7 f a normal pressure upon the shank of the pigis riveted firmly to the under side of the tail irrespective of the bolt 15, so that release finger-head body. The lateral extremities of the latter, or even its complete removal, of the upper leaf are bent outwardly at an I will not entirely release the pressure on the pig-tail, and the latter is thus held steady in the finger-head, which condition greatly facilitates accurate adjustment of the same in the correction of minute displacements. By reason of the fact that the hinge-leaves are made of comparatively stifi and heavy metal, in order to withstand the strains on the finger-head, as above fully de scribed, it is possible for the clamping plate 13 to exert a very considerable pressure upon the pig-tail, and this pressure, being supplemental to the pressure of the tightened clamping bolt, materially increases the positiveness of the position in which the pigtail may be bolted. As shown in Fig. 5 the aperture in the front flange 1 of the fingerhead is made of sufficient lateral dimension to accommodate the angular adjustment of the threaduide in the finger-head, and, it may be of sufficient width to enable the looped shank of the pig-tail to be inserted through it, although the pigtail may be placed beneath the clamping plate before the parts are riveted to the finger-head if desired.

Having described my invention, what I claim and desire to secure by United States Letters Patent, is, viz:

1. A thread board for spinning frames comprising a back rail, a sheet metal. finger head therefor provided with marginal reinforcing flanges, a thread guide secured to said finger head, and hinge mechanism independent of said finger-head, comprising hinge-leaves secured respectively to said back rail and linger-head, one of the said leaves having its lateral. extremities bent outwardly, forming step ears transverse to the hinge axis and within said reinforcing langes, said ears being adapted to hold said finger-head in horizontal position.

2. it thread board for spinning frames comprising a back-rail, a sheet metal fingerhead therefor provided with downtm'ned rei lntorcing flanges, and a thread guide on said fin 'er head. in combination with in de- 0 I I I pendent hinge mechanism comprising hinge leaves secured respectively to said back-rail and finger-head, one of said leaves having its lateral extremities bent outwardly transverse to the hinge axis, and positioned to be engaged by the other hinge-leaf to hold the finger-head in horizontal position.

3. In a thread-board for spinning frames, the combination with the finger-head and means for supporting the same from the back rail and holding the same horizontal, of a thread guide ingularl and longitudinally adjustable on said finger-head, being held against the underside thereof by a resiliently supported clamping plate secured to said finger-head and normally clamping said thread-guide independently of other clamping agency, and a positive clamping means operable upon said plate to lock the said guide positively between said plate and finger head.

a. A thread board for spinning frames comprising a back-rail, a sheet metal fingerhead, a thread-guide and hinge mechanism comprising hinge leaves, one of said leaves being provided with laterally bent extremities forming stop-ears for holding the fingerhead in horizontal position, in combination with a clamping plateformed integrally on the upper of said leaves and a bolt for binding the thread-guide, between the said plate and the finger-head.

5. A thread-board for spinning frames comprising a back-rail, a sheet metal fingerhead and a thread-guide therefor, in combination with an independent hinge-leaf se cured to said finger-head and having its lateral extremities bent transversely to the hinge axis and forming stop-ears, and provided further with a clamping plate adapted to hold the thread-guide to the finger-head.

In testimony whereof, I have signed my name to the specification in the presence of two subscribing witnesses.

WILLIAM O. nLDRICH. lVitnesses Hxmron O. NELSON, OSCAR L. OWEN. 

